Auto merge of #116724 - RalfJung:alloc-bytes, r=oli-obk

interpret: clean up AllocBytes

Fixes https://github.com/rust-lang/miri/issues/2836
Nothing has moved here in half a year, so let's just remove these unused stubs -- they need a proper re-design anyway.

r? `@oli-obk`

compiler/rustc_const_eval/src/interpret/memory.rs

@@ -538,17 +538,6 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
         )
     }
 
-    /// Get the base address for the bytes in an `Allocation` specified by the
-    /// `AllocID` passed in; error if no such allocation exists.
-    ///
-    /// It is up to the caller to take sufficient care when using this address:
-    /// there could be provenance or uninit memory in there, and other memory
-    /// accesses could invalidate the exposed pointer.
-    pub fn alloc_base_addr(&self, id: AllocId) -> InterpResult<'tcx, *const u8> {
-        let alloc = self.get_alloc_raw(id)?;
-        Ok(alloc.base_addr())
-    }
-
     /// Gives raw access to the `Allocation`, without bounds or alignment checks.
     /// The caller is responsible for calling the access hooks!
     ///